Humidifier for furnaces



H. M. NOBIS HUMIDIFIER FOR FURNACES Filed Jan. 25, 1925 I N V EN TOR. Harry M lVobis ATTORNEYS- chamber by said attachment.

3 the top-most point of said vide means for feeding liqui from a source Patented May 22, 1923. a

UNITED, STATES PATENT may at. noms'or nas'r onnvnmnn, euro; 7 i

nummrmn ron ruanacns- Application filed January as, 192a Serial No. sigma, i"

To lallwhmn it my cancer-12 :v

Be it known that I, HARRY M. Nome, a

' resident of the city of East Cleveland,

county of 5 a citizen of the United States of America,

5 haveinvented certain new and useful Improveme'nts in'Humidifiers for Furnaces, of which the following is a. specification.

This invention I term a. humidifier and 're- 1 lates to mechanical attachments for furnaces whereby moisture is supplied to the air for circulation throu h buildings to be heated. The attachmentherein described is designed especially for hot air furnaces and 1 is arranged to be detachably mounted upon the dome of the furnace whereby the heated air risin about the fire chamber will be moisten by evaporation from the water ex-- posed thereto as the latter is fed into the air It is an object of this invention to provide a humidifier for the above purpose which shall supply anespecially large surface of liquid for evaporation, and to provide means for controlling the rate of flow of the liquid used over said humidifier, the amount of evaporation depending, of course, upon the heat of the furnace, the amount of moisture surface exposed andthe draft of air in cire0- culation 'therethrough.

It. is a further .ob ect of my invention to provide the liquid holder which I use in the form of an open, s iral, trough-like groove for receiving 'liqui therein at one end at cove, to proofsupply outside the furnace to the highest point of the spiral, and for draining off any 1 surplus or overflow liquid which may flow from the lowest point of the spiral.

It is a special advantage of my humidifier that it is easily mounted upon the usual type of hot air furnaces, and can be detached and thereby readily v removed therefrom when desired for any reason. It is also easily cleaned'orre aired, if it'should'be necessary, and can t erefore be readily re- 'placed' by another.

My invention therefore consists of an attachment which -is relatively inexpensive,

simply constructed and easily operated. The parts as hereinafter more particularly described and, pointed out in a appended-claim? ref in' in which i- Cuya-hoga, and State. of Ohio, and

*face presenting a spiral thereoffare arranged and constructed 1 erence being had tome-accompanying rawrigure 1 represents 'the upper art-of a hot air furnace, a part being bro en away to show rrry'alttachment as ap lied thereto;

Figure 2 ,representsa centra vertical section of the humidifier, as' shown in Fig. 1;

are elevational and plan Figures 3' and 4' ofai modified form of views, respectively, humidifier used in either .form of humi Figures 6 and 7 are sectional detail views I of construction ad'a ted, foif applicationto.

the helical grooves ructure.

Figure 5. is a vertical-section of a drip cup eviceflandtube leadin j therefrom, as

In the drawin in whiehflikecharacters of reference designate corresponding parts throughout the several -views, A is a hot air furnace of ordinary construction, burn- I I 16 d, B; designating the ing any of the usual rl%els-w0od,' coal, gas

5 which may be directed to a sewer or'any convenient receptacle] The case 1 may :be formedof cast. metal, particularly if. made in 'the preferred form withinthe hot air; chamber 6 upon thetop of the dome G 'which-Eis usually curved whereby the cone 1 very -readilyada ts itself to the intended p.osition ;;andjuse. "mm the cup 7 a feed pipe 8 1 ;adsthrou h the casing B andterminates in'an inverts cup whichfis positioned detachably-over t e pin 3, and has alateral opening 10. for the re ception of the said -'pip' e'-- 8. -Th1S construce tion, it will the rotation ofthe' casing iffor. adjusting the position 'of the pipe .5jw1thout interfering in 7 any way with thefconnection with'the pipe 8, I The walls of the -cone'l are perforated at a plurality of points 11 provide for air iece 9,

be noted,'serves'}to make' possible cup 7 may also be circulation, and thus to increase the amount of evaporation from the liquid ooves. The rovided with a special construction for sea ing the water or other liquid flowing into said cup from entrance of outside air anddust into the chamber. 6. 'lhe'structure illustrated in Fig. may be used for this purpose; and consists of a D metal cup piece 12having a. central cylindrical space 13 opening outward into a frusto-conical opening 14 for receiving therein the lower and smaller and of the cup piece 7 as shown. The pipe 8 enters'the said central space through a lateral opening 15. Within the said cup 7 is placed a concave member 16 which has an uneven edge, such as notches 17-, to permit the liquid to flow down into the cup from the dropper Q vised such groove with a series of sockets and protuberances'therein WhlCh serve the,

1 double purpose of increasing the surface of liquid exposed tothe warm air causing evaporation, thus increasingthe latter, and

also present small obstacles to the continu-- ous flow of the liquid in the groove' and thus by hindering the said fiowflperniit longer action of the hot air from fthe furnace pot thereon for a given length or g-mew. These special details are illustrated onfan enlarged scale in Figs. 6 and 7 and comprise sockets 27 of which I may use a large number, all being of course filled with the liquid as the latter flows along the roove 2, the heated cone 1 serving to v cause heated liquid at the bottom of these sockets to rise to the surface of the liquid stream and both increasing exaporation from the surface but also serv- This structure ing to hinder somewhat the onward flow of said-stream. -Also protuberances28 are provided for the bottom of these grooves, their walls being thin, as shown particularly in Fig. 7, and having small channels or apertures 29 leading from inner space of the cone up to and above the bottom of the groove.

rovides a very ede ctive heat surface for furtiher evaporatingthe liquid in the stream flowing along the groove and thus increasing the speed of evaporation.

Thesesockets and protuberances 27 and 28 may alternate in a single coil of. the

.' groove '2, or parts 27 may be used in alternate coils with parts 28 provided in the others. It is immaterial from the patentstandpomt how these details are used, but I the collar 22. The parts may mo em 1 intend to use a plurality of them on each fied form of humidifier which has its own peculiar advantages for certain uses and conditions. It is comprised of separated coils of open pipes forming grooves 23 there' in, the pin 3 being used substantially as in the preferred form, and the lower or base end of the coil entering a lateral opening 25 in a block 24 which has an opening 26 .to receive the pipe 5 which is used as in the preferred form. This modified form will ordinarily be made of sheet metal, the apertures 28 being punched up to the form made use ofin the first form, and the sockets 27 formed in the same manner though by pressure from above. Fig. 4 shows suggestive location of such aperatures and sockets, though they may be greatly increased in number.

In use, the cone device 1 is positioned on the dome 6 of the fire chamber, the ipe 5 being attached to the lower end or col ar 22, I

pipe 8 being inserted through casingwa-ll and cup 9 positioned on pin 3. The valve" 19 is then adjusted for dropping water .or other liquid at a speed approximately per mitting the liquid to be evaporated from groove 2 by the time the residue could reach easily be cleaned, the cup parts 7 and 16 being readily detached and separated when necessary, and the humidifier itself may be wholly removed from the fire chamber for the same purpose.

The form of device shown in Figs. 3 and 4 requires no apertures as 11 to make entrance of hot air from within the cone outward to the main hot air chamber. Very 1 perfect circulation is attained between the ""5 said chamber and the interior of the cone. between the various spirals of this coil since all are separated from eachother, n this modified :Eorm, however, it is expedient to rest its large base upon the upper surface of the fumace dome, and to terminate the,

highest point of the coil in a pin 3 and connect the cup 9 thereon, as in the other form.

It will be apparent thatl have devised a novel and useful humidifying device which is com arativelyi inexpensive, and yet serves when tted with connections to inflow. and

outflow pipes connecting. with proper sources, to make the airmoist'as it is about to enter the various rooms to be heated, that it embodies the features of advantage enuiao merated as desirable in the statement of. the

objects of the invention and the above de scription, and while I have, in the present instance, shown and described a limited numher of embodiments thereofwhich 'will give in practice satisfactory and reliable results. it is to be understood that the same is sus ceptible of further modification in various particulars without departing from the spirit or scope of the invention or sacrificing any ofits advantages 'What I claim as new and desire to secure by Letters Patent, is,- Y

1. The combination with the hot air chamber and dome of a hot air furnace, of a humidifier comprising a hollow conical casing seated removably on the top of said dome with its apex uppermost and terminating in a pin, an overflowpipe leading from the base of the cone to, a point outside the chamber, an inverted cup adapted to enclose said pin and an inflow pipe leading from an outside source of liquid supply and terminating within said chamber in said cup.

2. The combination with the hot air chant her and dome of a hot air furnace, of a humidifier comprising a cone-shaped support having a helical groove on its external surface and opening outward from the support and serving to hold liquid therein, the base of said support being circular and adapted to rest removably on the said dome and the apex thereof terminating in 'a vertical pin, inverted cup means adapted to fit over said-pin, and in-flow pipe means entering the hot air chamber through the casing wall and havin means for detachably connectin with said cup means.

3. T e combination with the hot air chamber and dome of a hot air furnace, of-

va humidifier comprising a hollow "-c'oneshaped casin seated removably on the top of'the said ome with its a ex uppermost and terminating in a vertica pin, there being a helical groove leading from said apex downward about the exterior of the said hollow casing and terminating below in a connecting device at the base of the cone, an overflow pipe having'the inner end inserted within said connection and directed outward through the wall of the chamber, an inflow pipe eading from an outer source of supply of liquid to be evaporated and terminat ng within the said hot air chamber, and an inverted cup, secured to said inflow pipe and adapted to fit removably over' the said in.

- 4. A humidifier for furnaces comprising a support having an external groove ter-' minating at its lowest point in a connector member, a vertical pin on said support at its highest point from which said groove leads downward, and an inverted cup mem beiadapted to removably rest on said pin and having an aperture to receive a supply pipe therein.

'.5. A humidifier for hot air furnaces comprising a hollow cone-shaped, apertured case having avertical in at its apexandan minating at its base, a hollow connecting member in which the wer end ofthe said base, there being an externa helical groove on the outer surface of said support leading downward from said pin and terminating in said connector, an inverted cup member adapted to fit over said pin-and having a lateral aperture therein, a supply pipe adapted to empty into said cup and an overflow pipe leading outward from saidc'onnector.

7. A humidifier for furnaces comprising a support having an external groove terminating at its lowest point in a connector member, hollow protuberances rising upward from the floor of said groove into the latter, a vertical pin on said support at its highest point from which said groove leads downward, and an inverted cup member adapted to removably rest on said pin and having an aperture to receive a supply pipe therein.

8. A humidifier" for furnaces comprising awsupport having an external grooveterminatingat its lowest point in a connector member, there being a series of s aced sockets or depressions in the floor 0 said roove, a vertical pin on said support .at 1ts highest point from which said groove leads downward, and an inverted cup mem ber adpa'tedto removably rest on said pin and having an aperture to receive a supply pipe therein. a

9. A humidifier for furnaces comprising a support having an external groove ,.terminating at its lowest pointin a connector member, the floor of said groove having a series of spaced depressions therein and a series of spaced hollow protuberances rising upward therefrom into the groove, the de pressions alternating with the protuberances, a vertical pin on said support at its highest point from which said groove leads downward, and an inverted cupmember adapted to removably rest on said pin and, havingan aperture to receive a supply pipe therein.

10. A humidifier for furnaces comprising a support having an external groove terminating at its lowestpointin a connector member, hollow protuberances rising upward from the floor of said groove into the latter, there being channels. or apertures leading from. the innerspace within the protuberances through the walls ofsaid support to the interior of the. latter, a vertical pin on said support atits highest point fromwhich said groove leads downward, and an ing a series of spaced sockets or inverted cup member adapted to removably rest on said pin and having an aperture to receive a supply pipe therein.

11. Ahumidifier for furnaces comprising a. hollow, cone-shaped device inc uding therein an helical groove terminating at its lowest point in-aconnector member, hollow protuberan'ces rising upward from the floor of said groove into the latter, a. vertical pin at the apex of said device from which said groove leads downward, and an inverted cup member adapted to reinovably rest on said pin .and having an aperture to receive a, supply pipe therein.

12. A. humidifier for furnaces comprising a hollow, cone shaped device including therein en helical groove terminating at its lowest point in a. connector member there bedepressions in the floor of said groove, 8. vertical pin at I the apex of said device from which said groove, a hollow connectin groove leads downward, and on inverted cup member adapted to removebly rest on said pin and having means for receiving a supply pipe therein. I I

13. A humidifier for furnaces comprising a, hollow, cone-shaped, apertured case having a vertical pin at its apex and an open base and a helical groove in its external surface leading downward from said pin and winding about the said case and terminetin at its base, there being it series of space sockets or depressions in the floor of said member in which the lower end of the'sei groove ends, an inverted cup-shapeddevice adapted to fit over said pin, a supply pipe adapted to empty into said cup end an overflow pipe leading outward from said connector.

In testimony whereof I hereunto afiix my signature. r

M. N BIS. 

